<html>
<head>
    <metahttp-equivmetahttp-equiv="Content-Type"content="text/html;charset=gb2312"/>
    <title>Copterfly'sBlog</title>
    <style>

    #wrap{overflow:hidden;}
    #sidebar_left,#sidebar_right{padding-bottom:100000px;margin-bottom:-100000px;}

    </style></head>

<body>
<div id="wrap"style="width:300px;background:#FFFF00;">
<div id="sidebar_left"style="float:left;width:100px;
background:#777;">Left</div>
<div id="sidebar_mid"style="float:left;width:100px;
background:#999;">
Middle<br/>
Middle<br/>
Middle<br/>
Middle<br/>
Middle<br/>
Middle<br/>
Middle<br/>
Middle<br/>
Middle<br/>
</div>
<div id="sidebar_right"style="float:right;width:100px;
background:#888;">Right</div>
</div>
</body>